Displax Finder provides an easy way of knowing the IP address of Displax Moovit and Pathfinder units across your local network. It sends a broadcast message to which the units respond with their serial number. You must be on the same network to have a response. For example, if you are in network 192.168.1.X and your units are connected to network 192.168.2.X it will not work. Network configuration of your wireless router can also affect the detection of the units.